schema-registry - Templating for liveness/readiness probes (#6301)

* incubator/schema-registry v0.4.4 - templating for liveness/readiness probes

* Remove unnecessary '}' that breaks deployment template

incubator/schema-registry/Chart.yaml

@@ -1,6 +1,6 @@
 name: schema-registry
 home: https://docs.confluent.io/current/schema-registry/docs/index.html
-version: 0.4.3
+version: 0.4.4
 appVersion: 4.0.1
 keywords:
   - confluent

incubator/schema-registry/templates/deployment.yaml

@@ -67,14 +67,31 @@ spec:
             httpGet:
               path: /
               port: {{ .Values.servicePort }}
+            {{- if not .Values.livenessProbe }}
             initialDelaySeconds: 10
             timeoutSeconds: 5
+            {{- else }}
+            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds | default 10}}
+            {{- if .Values.livenessProbe.periodSeconds }}
+            periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+            {{- end }}
+            timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds | default 5}}
+            {{- if .Values.livenessProbe.successThreshold }}
+            successThreshold: {{ .Values.livenessProbe.successThreshold }}
+            {{- end }}
+            {{- if .Values.livenessProbe.failureThreshold }}
+            failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
+            {{- end }}
+            {{- end }}
           readinessProbe:
             httpGet:
               path: /
               port: {{ .Values.servicePort }}
-            initialDelaySeconds: 10
-            timeoutSeconds: 5
+            initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds | default 10}}
+            periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds | default 5}}
+            successThreshold: {{ .Values.readinessProbe.successThreshold }}
+            failureThreshold: {{ .Values.readinessProbe.failureThreshold }}
           env:
           - name: SCHEMA_REGISTRY_HOST_NAME
             valueFrom:

incubator/schema-registry/values.yaml

@@ -48,6 +48,16 @@ kafkaStore:
   ## Additional Java arguments to pass to Kafka.
   # schemaRegistryOpts: -Dfoo=bar
 
+## Readiness probe config.
+## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/
+##
+readinessProbe:
+  initialDelaySeconds: 10
+  periodSeconds: 10
+  timeoutSeconds: 5
+  successThreshold: 1
+  failureThreshold: 3
+
 # Options for connecting to SASL kafka brokers
 sasl:
   configPath: "/etc/kafka-config"